Good to know, but this is a security risk of the note taking app, not of the encryption method itself.

If you are storing manly on one device and are looking for a relatively “simple” solution for encryption at rest I would suggest to just encrypt the folder/directory/image the data are living in.

Of course, this way you have to decrypt the data while you are using it. However, it separates the responsibility from the note taking app.

This may or may not be a good solution for your use case, but it should be fast and easy to implement.

I used to do this with some mildly sensitive data using a mac encrypted disk image with plain markdowns files inside. I accessed the files with vscode, but I don’t see why it wouldn’t work with Obsidian. It may just be a bit of a hassle to open the vault each time.

Not really both Krita and GIMP works mainly on raster images like Photoshop. Illustator is a vector graphic software. The closest foss relative of which would be Inkscape.

The thing is, Photoshop was born as a photo manipulation tool but the drawing functionality has become an industry standard (I think mostly because they give free licenses to students). GIMP is a photo manipulation tool and Krita is a digital painting software. They have overlap but neither of them aim at replacing Photoshop as a whole. GIMP may be the closest match. Krita is more comparable to ClipStudio or Corel painter imo.